Clustering of galaxies at z=3 around the probable Damped Ly-alpha absorber towards QSO APM 08279+5255

Abstract

[Abridged] We present results on the clustering og Lyman break galaxies (LBGs) around a probable damped Ly-alpha absorption (DLA) line cloud at z_DLA=2.974 from deep UBVI images of the field containing the quasar APM 08279+5255 (z=3.91). The large area covered by our images, 0.31 deg^2 or 40x40 Mpc co-moving at z=3, and their depth (27.6 mag arcsec^{-2}), allow us to identify 450 LBG candidates brighter than I(AB)=24.80 at 2.75<z<3.25. LBG candidates were selected using photometric redshift techniques that include priors within a redshift slice of width Wz=0.15 centered at z_DLA. Within that redshift slice, we find an enhancement of galaxies near the DLA using both the surface density and an estimator of the 3-D spatial over-density. The surface overdensity (3\times) is significant at the >95% significance level on scales 2.5<r<5 Mpc co-moving and imply that some DLA could reside in high density regions.

arXiv comment9 pages, 3 figues, accepted for publication in ApJ

References in corpus (26)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Lyman Break Galaxies at z>4 and the Evolution of the UV Luminosity Density at High Redshift
• Bayesian photometric redshift estimation
• The Luminosity Function of Galaxies in SDSS Commissioning Data
• Galaxies and Intergalactic Matter at Redshift z~3: Overview
• On the Kinematics of the Damped Lyman Alpha Protogalaxies
• Damped Lyman alpha absorbers at high redshift -- large disks or galactic building blocks?
• Discovery of Damped Lyman-Alpha Systems at Redshifts Less Than 1.65 and Results on their Incidence and Cosmological Mass Density
• Metal Abundances at z < 1.5: Fresh Clues to the Chemical Enrichment History of Damped Lyman alpha Systems
• The UCSD HIRES/KeckI Damped Lya Abundance Database: II. The Implications
• Extended Ly-alpha emission from a damped Ly-alpha absorber at z = 1.93, and the relation between DLAs and Lyman-break galaxies
• Damped Lyman-alpha and Lyman Limit Absorbers in the Cold Dark Matter Model
• QSO Absorbing Galaxies at z<~1: Deep Imaging and Spectroscopy in the Field of 3C 336
• Si and Mn Abundances in Damped Lya Systems with Low Dust Content
• APM 08279+5255: an ultraluminous BAL quasar at a redshift z=3.87
• Subaru Deep Survey. IV. Discovery of a Large-Scale Structure at Redshift \simeq 5
• On the compared accuracy and reliability of spectroscopic and photometric redshift measurements
• Galaxy Formation and the Kinematics of Damped Lyman Alpha Systems
• NICMOS Imaging of a Damped Lyman-alpha Absorber at z=1.89 toward LBQS 1210+1731 : Constraints on Size and Star Formation Rate
• High matter density peaks from UVES observations of QSO pairs: correlation properties and chemical abundances
• Deprojecting Densities from Angular Cross-Correlations
• H-alpha Imaging with HST+NICMOS of An Elusive Damped Ly-alpha Cloud at z=0.6
• First Investigation of the Clustering Environment of Damped Lyman Alpha Absorbers at z=4
• MgII Absorption Lines in z=2.974 Damped Lyman-alpha System toward Gravitationally Lensed QSO APM 08279+5255: Detection of Small-scale Structure in MgII Absorbing Clouds
• Photometric Monitoring of the Gravitationally Lensed Ultraluminous BAL Quasar APM08279+5255
• Size estimates for intervening C IV absorbers from high resolution spectroscopy of APM 0827+5255

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